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AKT1S1 phosphorylated on T246 activates MTOR. 1 / 1
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"Furthermore, PRAS40 phosphorylation by Akt and association with 14-3-3, a cytosolic anchor protein, are crucial for insulin to stimulate mTOR. -- (From Results Section) Because insulin stimulates Akt-mediated phosphorylation of PRAS40 at Thr 246 (ref. 26), we considered the possibility that PRAS40 phosphorylation may influence insulin activation of mTOR. Both wild-type PRAS40 and mutant PRAS40T246A expressed in 293T cells inhibited S6K1 phosphorylation and this inhibition was reduced on Akt1 coexpression with wild-type PRAS40 but not PRAS40T246A--"